2012140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 4656960

約数和(自身を除く): 2644820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 109, 130, 142, 218, 260, 284, 355, 436, 545, 710, 923, 1090, 1417, 1420, 1846, 2180, 2834, 3692, 4615, 5668, 7085, 7739, 9230, 14170, 15478, 18460, 28340, 30956, 38695, 77390, 100607, 154780, 201214, 402428, 503035, 1006070, 2012140]

約数ペア:

[(1, 2012140), (2, 1006070), (4, 503035), (5, 402428), (10, 201214), (13, 154780), (20, 100607), (26, 77390), (52, 38695), (65, 30956), (71, 28340), (109, 18460), (130, 15478), (142, 14170), (218, 9230), (260, 7739), (284, 7085), (355, 5668), (436, 4615), (545, 3692), (710, 2834), (923, 2180), (1090, 1846), (1417, 1420)]